Typewriting machine



March 7, 1939.

w. T. SAGNER TYPEWRITIIIQVG MACHINE Filed Jan. 21, 1957 2 s s t 1-ATTORNEY.

w. T. SAGNER TYPEWRITING MACHINE March' 7, 1939.

Filed Jan. 21, 1937 2 Sheets-Sheet 2 INVENTOR: Wm 24 a W x. 7 1%ATTORNEY.

Patented Mar. 7, 1939 UNITED STATES ATENT OFFIQE TYPEWBITING MACHINEApplication January 21, 1937, Serial No. 121,457

14 Claims.

This invention relates to carriage extension supporting means fortypewriting machines, and is illustrated in connection with abookkeeping machine of the Underwood type. Certain features of theinvention are applicable to continuous billing machines in general inwhich printed forms are repeated along each ply of a multipleply Web, tobe torn off one by one when typed, the web being usually of the fan-foldtype.

The rear frame extension of the usual continuous billing machine forsupporting the carriage extension adds considerably to the bulk of themachine, making it of an inconvenient shape to store or ship.

A feature of my invention is the provision of a rearwardly extendingsupport for the carriage extension, pivoted at its lower end to thecomputing part of the machine, and capable of being folded against themachine to effect a considerable saving of space for packing, shippingor storing.

I have illustrated a bookkeeping machine with a rear carriage extensionof a unitary construction, which may be used on a stand or ordinarydesk. Due to its size there is considerable risk that the carriageextension may be damaged due to falling or collision. With a castsupport there may be breakage. I overcome this by providing a tubularsupport of light weight having great strength and resiliency towithstand shock, and means are provided for realignment.

Another object is the provision of an adjustable rear carriage supportor truss-structure that combines light weight with great strength, whileretaining the resiliency desirable in tabulating mechanism.

It has been found that the momentum of the carriage extension or table,in tabulating or carriage-return operations is apt to cause a twistingof the carriage which is sufficient to cause the denominator selector toengage the wrong jack. This occurs even when the tabulating andescapement mechanism function properly and causes incorrect results tobe exhibited. It may also cause the ripping or tearing of the carbonpaper or the thin tissue of the fan-fold web material.

An object of this invention is to eliminate this objectionable conditionby improved rear carriage support construction and the provision. ofplates on the rear carriage extension for engaging the rear guide railof the support.

In the rear carriage support of my invention I provide two rearwardlyextending tubular metallic members, pivotally connected to a transversestrap in the lower part of the machine frame, and spaced apart slightlyless than the width of the frame. At the upper and rearward ends the twotubular members are riveted to an angle piece extending across the widthof the machine, so that the strap, tubular members, and angle piece forma rectangle. This rectangular support is held in proper position bymeans of two adjustable tie rods rotatably connected to lugs on the endsof the angle piece and to the upper sides of the machine frame so thatthe tie rods and tubular members form an acute angle. The angle-piece isarranged to carry a guide rail to support the rear carriage, and thisguide rail is provided with slotted portions to adjust it so that it maybe made horizontally parallel to the carriage guide-rail.

The above design. provides a light and very strong construction tosupport the weight of the rear carriage. To stiffen and conduce tolateral strength, a diagonal tubular member is welded from the topportion of one tubular member to the bottom, portion of the oppositetubular member, so that the tubular member and the diagonal member formtwo legs of a shear, whose base is the strap in the machine frame. Inorder to secure the greatest advantage of this construction, theincluded angle between the shear legs is made as great as possible, andfor added strength and ease of assembly the diagonal member is welded tothe opposite tubular member.

A similar diagonal member is welded in the same manner to the oppositetubular member, so that another shear is formed, the two shears havingtheir outer shear legs parallel and their inner shear legs crossing;forming a composite shear. The two crossing legs may be formed so as topass each other without touching, so that two separate and independentshears are formed having their tops tied together by means of the anglepiece holding the rear guide-rail. Due to this double-shearconstruction, the support is incapable of lateral displacement in eitherdirection.

To align the rear guide-rail with the carriagerail in a vertical plane,adjustment is provided at the lower ends of the shear legs, which arepivotally secured to studs threadably engaged in the transverse strap ofthe lower machine frame. Rotation of these studs shifts the position ofthe tubular members and swings the guide-rail in an arc whose center isthe pivot of the forward end of the rod. With the rear-rail thus alignedin a vertical plane, it is easily shifted in a horizontal plane by meansof the slotted rail portions fastened to the angle piece.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure l is a sectional side elevation of a portion of a bookkeepingmachine having the present invention applied thereto.

Figure 2 is a partial side view showing the rear carriage support foldedfor shipping.

Figure 3 is a view taken along the lines 3-3 of Figure 1, showing theconstruction of the: rear carriage support and the carriage-swingresisting plates; and

Figure 4 is a plan view of the rear carriage support.

Referring now to- Figure 1, a typewriter I I, having a frame I2,overlies a computer I3, which is controlled by the numeral keys of thetypewriter.

The typewriter I I comprises a platen I 4 mounted on a platen-axle I5,which is rotatably supported in a travelling carriage IS. The carriageI6 is supported at its rear by a guide-rail I1 fixed on thetypewriter-frame feed mechanism 5| and escapement 52 are provided. Thecarriage I6 is provided at its ends with brackets 8 extendingrearwardly, in which a are mounted a bar I9 and a rod 29, along whichthe computing section I3 of the machine.

selectors 53 may be moved. Tabulating means with register anddenominational selecting means are provided as indicated generally atv21, and described in detail in the co-pending application No. 72,348, ofH. L. Pitman, filed April 2, 1936. The brackets I8 also extend upwardly,and are connected together by a rod 55' on which are i slidablypositioned fingers 56 for guiding the web 51 and carbon sheets 58.

At the rear of the machine, provision is made for a carbon-carriage 22,mounted for movement forward and from the platen, upon a rear carriageextension or table 23, comprising a front member 24, secured by screws49 to brackets I8, arear member 25, and a plurality of connectingmembers 26, the two outermost ones having on their upper side rails 21,with each one of which co-operate grooved rolls 26 mounted on thebaseplate 29 of the carbon-carriage 22. To support and guide the rearcarriage extension at its rear end, provision is made of a guide-rail30, mounted on an angle 3| and extending substantially parallel to theguide-rail IT. The two outermost members 26 have an angle plate 32attached in a downwardly-extending position, and each plate 32 carries'aroller 33 which rides upon the rail 30 and a hook guide 34'whichpartially embraces the guide-rail 36. To prevent excessive swingingmovement of the carriage, at the conclusion of a tabulating orcarriage-return operation, the plates 32 are provided with lateralextensions 35, to lie to the rear of the rail. These extensions arepositioned to, engage the rail 3|] when the carriage has been swung onlya slight amount, and in co-cperation with the hook guides 34to limit theswinging movement of the carriage and the carriage extension, the plateat one side of the carriage extension and the hook guide 34 at theoppositeside thereof having a tendency to bind the guide rail 39 betweenthem when the carriage is swung.

The angle 3| upon which the guide rail 30 is adjustably mounted by meansof screws 36, is secured to tubular supports 31 by meansof rivets 59.These supports extend downwardly and forwardly, and are pivotallyconnected by screws 38 to studs 39, adjustably mounted to a strap 40',in

The tubular supports 31 are joined together The usual letterand bracedby means of tubular connectors 4| inv the form of shears. At thecrossover point, the connectors are formed so as to pass each otherwithout touching. This construction has been found to impart the properdegree of resiliency to deaden and absorb the shock occasioned by thesudden stopping of the rear carriage extension, and still have thenecessary strength to prevent distortion.

The angle 3| has forward extending lugs 42 at each end, to whichtie-rods 43 are connected by means of a screw 44. The forward ends ofthe tie-rods 43-are secured to the frame I2 of the typewriter I Iby'means of screws 45 and studs 50, and provision is made to adjusttheir lengths by means of a threaded portion 46 and lock-nut 41.

The tie-rods 43 are so positioned as to afford easy access to thetabulator section 2| for the purpose of setting the stops.

To adjust the rear-guide rail 30 so that it is parallel with thecarriage-guide rail I'I; screws 38 are removed and studs 39 rotateduntil the rear-guide rail 30 is parallel with the carriageguide rail I'I, in a vertical plane. To adjust in a horizontal plane, screws 36are-loosened, while in extreme cases, screws 45 are removed and-tierods43 rotated to a proper length.

To aid in letter-feeding, it is desirable that the guide-rails slopesomewhat to the left-handside of the machine. To accomplishthis, washers48 are inserted betweenthe foot and the base of the computing machine onthe right-hand side.

Figure 2 shows a machine: packed for shipment in a box 54. Screws 49 areremoved and the table 23 is removed from rear-guide rail 30. Screws 45are then removed from studs 50, and the supports 31 and tie-rods 43maybe folded-up close tothe machine.

Variations may be resorted'to' within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention; I claim:

1. In a typewriting machine having abaseand provided with a papercarriage having a. rearward extension, the combination of a rear trackupon which said extension runs, and a support for said track, includingtwo rearwardly and upwardly extending tubular members, a transversestrap to which said members are connected'at their lower 7 ends, saidstrap being secured to said'base, said tubular members at their upperends being fastened to a transverse tie-plate, and brace-membersextending from each tubular member foranchorage adjacent said tie-plate,said tie-plate, strip and tubular members forming a rigid unitary frame.r

2; In a typewriting machinehaving a base and provided with a papercarriage having a rear-- ward extension, the combination of a rear trackupon. which said extension runs, a support for said track, including tworearwardly and upwardly extending tubular members, a transverse strap towhich said members are connected at their lower ends, said strap beingsecured to said base, said tubular members at their upper ends beingfastened to a transverse tie-plate; said'tieplate, strap and tubularmembers forming a rigid broad frame, and two adjustable tie-rodsconnected at their rear ends to said tie-plate, and at their forwardends to the upper portion of the typewriter framing; said rail beingmounted upon said tie-plate.

3. In a typewriting machine havinga base an provided with a papercarriage havinga rearwardextension, the combination of a rear track uponwhich said extension runs, a support for said track, including tworearwardly and upwardly extending tubular members, a transverse strap towhich said members are connected at their lower ends, said strap beingsecured to said base, said tubular members at their upper ends beingfastened to a transverse tie-plate, said tie-plate, strap and tubularmembers forming a rigid broad frame, and two adjustable tie-rodsconnected at their rear ends to said tie-plate, and at their forwardends to the upper portion of the typewriter framing; said rail beingmounted upon said tieplate, and said guide-rail provided with meanswhereby it may be adjusted horizontally into parallelism with the mainguide-rail of said carriage.

4. In a typewriting machine having a carriage and a rearwardly extendingframe, the combination with a rear rail upon which said extension runs,of a support for said rail secured at its lower end at the base of thetypewriting machine and extending upwardly and rearwardly, and includinga shear structure having members converging from said base to said railmember, to support the same.

5. In a typewriting machine having a carriage and a rearwardly extendingframe, the combination with a rear rail upon which said extension runs,of a support for said rail secured at its lower end at the base of thetypewriting machine and extending upwardly and rearwardly, and includinga pair of shear supports each having an apex, the apex of one shearsupporting said rail at one end, and the apex of the other shearsupporting said rail at the other end, and means extending forwardlyfrom said apexes to connect them with the machine framing.

6. In a typewriting machine having a carriage and a rearwardly extendingframe, the combination with a rear rail upon which said extension runs,of a support for said rail secured at its lower end at the base of thetypewriting machine and extending upwardly and rearwardly, and includinga shear structure having members converging from said base to said railmember, to support the same, said shear structure at its lower end beingadjustable relatively to the base of the typewriter.

7. In a typewriting machine having a carriage and a rearwardly extendingframe, the combination with a rear rail upon which said extension runs,of a support for said rail secured at its lower end at the base of thetypewriting machine and extending upwardly and rearwardly, and includinga pair of shear supports each having an apex, the apex of one shearsupporting said rail at one end, and the apex of the other shearsupporting said rail at the other end, and means extending forwardlyfrom said apexes to connect them with the machine framing, each of saidshears including a diagonal member welded to the co-operative tubularmember at the apex of the shear.

8. In a typewriting machine having a carriage and a rearwardly extendingframe, the combination with a rear rail upon which said extension runs,of a support for said rail secured at its lower end at the base of thetypewriting machine and extending upwardly and rearwardly, and includinga pair of shear supports each having an apex, the apex of one shearsupporting said rail at one end, and the apex of the other shearsupporting said rail at the other end, and means extending forwardlyfrom said apexes to connect them with the machine framing, the twoshears having their outer shear legs parallel, and their inner shearlegs crossing, to form a composite shear.

9. In a typewriting machine having a carriage and a rearwardly extendingframe, the combination with a rear rail upon which said extension runs,of a support for said rail secured at its lower end at the base of thetypewriting machine and extending upwardly and rearwardly, and includinga pair of shear supports each having an apex, the apex of one shearsupporting said rail at one end, and the apex of the other shearsupporting said rail at the other end, and means extending forwardlyfrom said apexes to connect them with the machine framing, the twoshears having their outer shear legs parallel, and their inner shearlegs crossing, to form a composite shear, said crossing shear legs beingwithout contact, and the tops of the shears being tied together.

10. In a typewriting machine having a carriage and a rearwardlyextending frame, the combination with a rear rail upon which saidextension runs, of a support for said rail secured at its lower end atthe base of the typewriting machine and extending upwardly andrearwardly, and including a pair of shear supports each having an apex,the apex of one shear supporting said rail at one end, and the apex ofthe other shear supporting said rail at the other end, and meansextending forwardly from said apexes to connect them with the machineframing, the two shears having their outer shear legs parallel, andtheir inner shear legs crossing, to form a composite shear, saidcrossing shear legs being without contact, and the tops of the shearsbeing tied together by means of the angle piece which holds the rearguide-rail of the carriage extension, the composite shear support beingincapable of lateral displacement in either direction.

11. In a typewriting machine having a carriage and a rearwardlyextending frame, the combination with a rear rail upon which saidextension runs, of a support for said rail secured at its lower end atthe base of the typewriting machine and extending upwardly andrearwardly, and including a pair of shear supports each having an apex,the apex of one shear supporting said rail at one end, and the apex ofthe other shear supporting said rail at the other end, and meansextending forwardly from said. apexes to connect them with the machineframing, the lower ends of the shear legs being pivotally secured tostuds which are threaded into a transverse strap on the base of thetypewriter.

12. In a typewriting machine having a carriage and a rearwardlyextending frame, the combination with a rear rail upon which saidextension runs, of a support for said rail secured at its lower end atthe base of the typewriting machine and extending upwardly andrearwardly, and including a pair of shear supports each having an apex,the apex of one shear supporting said rail at one end, and the apex ofthe other shear supporting said rail at the other end, and meansextending forwardly from said apexes to a pivotal connection with themachine framing, the lower ends of the shear legs being pivotallysecured to studs which are threaded into a transverse strap on the baseof the typewriter, rotation of the studs being efiective to shift theposition of the shear supports, and swing the guide-rail in an arc whosecenter is the pivot of the forward end of said forwardly extendingmeans, said rear rail being thereby aligned to a vertical position, andbeing shiftable in a horizontal plane by means of slotted connections tosaid apexes.

13. In a machine of the character indicated, having a travelingcarriage, in combination, a table extending from said carriage, a railupon which said table travels, and having a support on the machine, saidrail support comp-rising a frame including spaced side members affixedto said rail and flexibly joined to the machine, diagonal members fixedto opposed ends of said side members and clearing each other at theirintersections to afford flexibility in the plane of said frame; andadjustable rods extending between said machine and the rail attachmentends of said side members, whereby to permit alignment of readilyadjustable for effecting adjustment of the relative locations of saidpivotal joints, whereby to adjust said track.

WALTER T. SAGNER.

